13878053806276 has 81 divisors (see below), whose sum is σ = 26830336417479. Its totient is φ = 6276429244800.

The previous prime is 13878053806259. The next prime is 13878053806297. The reversal of 13878053806276 is 67260835087831.

The square root of 13878053806276 is 3725326.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 7264803808900 + 6613249997376 = 2695330^2 + 2571624^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25652594566 + ... + 25652595106.

Almost surely, 2^{13878053806276} is an apocalyptic number.

13878053806276 is the 3725326-th square number.

It is an amenable number.

13878053806276 is a deficient number, since it is larger than the sum of its proper divisors (12952282611203).

13878053806276 is an frugal number, since it uses more digits than its factorization.

13878053806276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 64.

Multiplying 13878053806276 by its sum of digits (64), we get a square (888195443601664 = 29802608²).

The spelling of 13878053806276 in words is "thirteen trillion, eight hundred seventy-eight billion, fifty-three million, eight hundred six thousand, two hundred seventy-six".